So I was confused on my test, the question was, The track coaches wanted to pick the fastest girl on the team for the big race. Addison ran 2 kilometers in 20 minutes. And Emma ran 5 kilometers in 1 hour. Who should the coaches pick? I picked Addison is that right?

First you want to find the unit rate of each girl. But before doing that, you must convert one hour to minutes. There is 60 minutes in one hour. So

Addison runs 2 kilometers in 20 minutes, while Emma runs 5 kilometers in 60 minutes. We need to divide minutes by kilometers to find out how long it takes for them to run one kilometer.

Thus...

Addison:

20 divide 2 is 10. So Addison takes 10 minutes to run one mile.

Emma:

60 divided by 5 is 12. So Emma takes 12 minutes to run one mile.

Since the track coach wants to pick the fastest girl, Addison shall be the right option.

Have a good day!~

answer: what is the question you're trying to ask?

step-by-step explanation:

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.